1) A fulling-miller, the person who originally ‘walked’ or trampled the cloth, a regional term.
1301 De Rogero le Walker, New Malton
1349 in illo mesuagio in le Walkmylnbanke ... ex dono ... Johannis Walker, Ripon
1379 fullo Thomas Walker, Bradford
1436 Willelmus Brunsall, walker, York
1484 every walker shall walk the said cloth and clothez sufficiently ... so that thay be as wele walked in oon place as in an othere, York
1506 to send for suche on walker as shall walk and wyrk that cloth, York
1540 George Sympson had two Walk or fulling mills ... and in them used Walker Craft by himself or his men, Leeds. The 'feminine' form is also on record: 1379 fullo Johannes Walkester, Liversedge.